1. Radiator: Hidden under the plastics in the front of your machine is the biggest cooling component for the engine. The type of terrain you ride in determines just how dirty or clogged the radiator can get. Riding in fields of long wheat straw or saw grass and even cattails can add small buds and weeds to the surface of aluminum fins. With plenty of forward motion and a fan pulling air through the radiator from front to rear, this system can get coated to the point that it starts to cool the fluid inside less and less. Mud is also a part of many trail systems and getting through it means you have more of a chance of getting the muck coated on the radiator. The key to this tip is to take the time each time you ride to be sure the radiator is free of obstructions so it can work properly.